Frost's bolete and bitter bolete

Frost's bolete, Exsudoporus frostii (Boletus alveolatus) and bitter bolete, Tylopilus felleus (Boletus felleus). Chromolithograph after a botanical illustration by William Hamilton Gibson from his book Our Edible Toadstools and Mushrooms, Harper, New York, 1895

Bitter Bolete Boletus Edible Frosts Fungi Mushroom Mushrooms Mycology Suspicious Toadstools

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